The actions are performed one by one, in the order in which they
are listed in these rules (and on the action board). The first player
to perform an action is always the one whose action stone is furthest
to the left. For line expansion and new buildings this
will be the last player who has chosen the action. For
Vrrooomm... and new passengers it is the first. This
will automatically be apparent if the action stones have been put in
the right spots.

Line Expansion

Buyinga
Bus

New Passengers

New
Buildings

TheClock

VRROOOMM!

StartingPlayer

15 left

4 left

A player has to perform all the actions he or she has chosen as far
as possible. If an action can only be performed partially, it must be
completed to the maximum extent possible. It is not allowed to skip
actions, or part of actions.